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1·Class B: areal geology survey; rock ore appraisal and testing.

乙级：区域地质调查；岩矿鉴定与岩矿测试。

2·Class B: areal geology survey; geophysical exploration; rock ore appraisal and testing.

乙级：区域地质调查；地球物理勘查；岩矿鉴定与岩矿测试。